package main.java.indi.zyj.ioc;

import javax.swing.*;
import java.awt.*;

class Cardioid extends JFrame {

//定义窗口大小
private static final int WIDTH = 900;
private static final int HEIGHT = 800;

//获取屏幕大小
private static final int WINDOW_WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;
private static final int WINDOW_HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;
//构造函数
public Cardioid() {
//设置窗口标题
super("♥爱心");
//设置背景色
this.setBackground(Color.BLACK);
//设置窗口位置
this.setLocation((WINDOW_WIDTH - WIDTH) / 2, (WINDOW_HEIGHT - HEIGHT) / 2);
//设置窗口大小
this.setSize(WIDTH, HEIGHT);
//设置窗口布局
this.setLayout(getLayout());
//设置窗口可见
this.setVisible(true);
//设置窗口的默认关闭方式
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

//图形函数
public void paint(Graphics g) {
//横纵坐标及半径
double x, y;
//绘制图形
double z = 0.0;
double size;
int jj=0;
while (true) {
Image image = this.createImage(WIDTH, HEIGHT);
Graphics pic = image.getGraphics();
if (jj%2==0){
size=14.5;
}else {
size=15;
}
for (int ii = 30; ii > 0; ii--) {
Color color = new Color(255, 185, (int) (25 * Math.random()) + 210);
for (int i = 1; i < 1500; i++) {
int px = (int) (Math.random() * 99);
int py = (int) (Math.random() * 99);
x = 13 * (Math.sin(z) * Math.sin(z) * Math.sin(z)) * (size) + Math.pow((-1), px) * Math.random() * ii * Math.sqrt(ii) + WIDTH / 2;
y = -(12 * Math.cos(z) - 4 * Math.cos(2 * z) - 2 * Math.cos(3 * z) - Math.cos(2 * z)) * (size) + Math.pow((-1), py) * Math.random() * ii * Math.sqrt(ii) + HEIGHT * 1 / 3;
z += (Math.PI / 2.0) / 80;
pic.setColor(color);
pic.fillOval((int) x, (int) y, 2, 2);
}
if (ii < 3) {
pic.setFont(new Font("楷体", Font.BOLD, 40));//设置字体
pic.setColor(Color.pink);//字体颜色
//可自定义字体哦
pic.drawString("", WIDTH / 2 - 100, 240);//绘制字符串
pic.drawString("", WIDTH / 2, 280);//绘制字符串
g.drawImage(image, 0, 0, this);
}
}
jj++;
if (jj>100){
break;
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}

public static void main(String[] args) {
    new Cardioid();
}}